Index Accelerated Reader (AR) Practice Test

In a transformer, the turns ratio (TTR) is critical in determining the relationship between various electrical quantities in the primary and secondary circuits. A TTR of 6:1 means that for every 6 turns in the primary winding, there is 1 turn in the secondary winding.

According to the principles of transformers, current in the windings is inversely proportional to the turns ratio. This means that when you have a higher number of turns in the primary winding compared to the secondary, the primary current will be smaller, and the secondary current will be larger.

For a turns ratio of 6:1, if the primary current is designated as I1, the secondary current (I2) can be calculated using the formula:

I1 / I2 = Turns ratio (TTR)

Since the TTR is 6:1, we have:

I1 / I2 = 6 / 1

This implies that if you were to express the current relationship in terms of the primary to secondary current ratio, it would be:

I2 / I1 = 1 / 6

or equivalently,

I1 / I2 = 6 / 1

Thus, the ratio between the primary and secondary currents